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Envirco® MAC10 Control System - ITR-9

Control System
  • Wide power supply range (110—240 VAC / 50—60 Hz)
  • Automatic supply voltage detection
  • Adjustable stepless output voltage
  • Minimum speed adjustable by internal trimmer
  • Kick start or soft start
  • Illuminated on/off switch

The Envirco ITR-9 series of electronic fan speed controllers regulate the speed of single-phase (110—240 VAC / 50—60 Hz) voltage controllable motors by varying the supplied voltage. The ITR-9 controllers provide automatic power supply detection. The minimum speed is adjusted via an internal trimmer. The output is regulated by a potentiometer in the range between the minimum output voltage and the supply voltage. The series features an unregulated output for connecting a valve, lamp, damper, etc. There are two start-up modes - kick start and soft start, selectable via a jumper.